1 - Genera L M A Int Ena Nce And Clea Ning; Beginning Of Each Heating Season; Com Ponent Replacem Ent And Cleaning - ECR International COMBI 115 Installation, Operation And Maintenance Manual

!
D AN GER
Before servicing, turn off electrical power to boiler at
service swit ch. Close m anual gas valve t o t urn gas
supply OFF t o boiler. Failure t o com ply will result in
deat h or serious inj ury.
! !
CAU TI ON
Label all wires prior t o disconnect ion when servicing
cont rols. Wiring errors can cause im proper and
dangerous operat ion.
erify proper operat ion aft er servicing.
V
N o t e
Perform regular service and m aint enance by
N o t e
qualified service agency at least once every 12
m ont hs t o assure safe, t rouble free operat ion
and maximum efficiency.
A Heat Exchanger cleaning kit is available for
N o t e
annual service of t he boiler. See repair part s
m anual for part num ber.
1 1 .1 Beginning of Ea ch H ea t ing Sea son
• Check boiler area is free from com bust ible m at erials,
gasoline, and other flammable vapors and corrosive liquids.
• Visually inspect com bust ion air and vent piping for proper
operation. Check for and remove any obstruction to flow
of com bust ion air or vent gases. I m m ediat ely repair or
replace pipe showing det eriorat ion or leakage. Reassem ble
per inst ruct ions in sect ion 5. Ensure proper reassem bly and
resealing of syst em .
• Visually inspect condensat e drain line for proper operat ion.
Checking for det eriorat ed or plugged condensat e drain line.
Verify condensat e t rap drains freely and clean as required.
• Test safet y relief valve for proper operat ion. Refer t o valve
m anufact urer's inst ruct ions packaged wit h relief valve.
• Exam ine heat exchanger, burner, condensat e lines, and
clean ( if necessary) by following inst ruct ions in sect ion 11.3

- Com ponent Replacem ent And Cleaning.

1 1 - GEN ERAL M AI N TEN AN CE AN D CLEAN I N G
• Circulat or pum p and com bust ion air blower m ot or furnished
wit h boiler are perm anent ly lubricat ed from fact ory and
require no further lubrication. Lubricate field sourced
pum ps and/ or m ot ors according t o pum p and/ or m ot or
m anufact urer's inst ruct ion.
• Check following com ponent s are operat ing properly and are
free of blockages or obst ruct ions:
• air vent ;
• check vent uri air inlet for blockage and clean as
required;
• verify pressure t est port cap and com bust ion t est port
caps are in place
• verify supply and ret urn sensors are properly clipped t o
pipes as close t o heat exchanger as possible;
• Check boiler for any sign of leaks.
• Check external low water cutoff operation (if installed).
• Check operat ion by pressing t est but t on on low wat er
cutoff.
• "Low Wat er" LED on t he ext ernal LWCO should
illum inat e and boiler should shut down.
• Every 5 years remove low water cutoff. Reinstall after
cleaning.
• Every 10 years replace low water cutoff.
• Visual inspection of flame through sight glass. Burner
should be fully illum inat ed.
• Check heat ing syst em expansion t ank.
6 2
240013687 REV A [ 09/ 01/ 2022]